﻿#region " LICENSE "
// DRILL - Dependency Resolution Interface Layer Library
// Copyright (c) 2008-2012 Wade A. Reynolds. All rights reserved.
// http://drill.codeplex.com/
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#endregion
using System;
using System.Collections.Generic;
using Drill.Configuration;

namespace Drill.Core
{
	public class ConfigBasedSearchPathFactory : ISearchPathFactory
	{
		private readonly ISearchPathConfigurationCollection _searchPathConfigs;

		public ConfigBasedSearchPathFactory(ISearchPathConfigurationCollection searchPathConfigs)
		{
			if (null == searchPathConfigs)
			{
				throw new ArgumentNullException("searchPathConfigs");
			}
			if (searchPathConfigs.Count < 1)
			{
				throw new ArgumentException("The searchPathConfigs collection is empty but it must contain at least one item.", "searchPathConfigs");
			}
			_searchPathConfigs = searchPathConfigs;
		}

		public IList<ISearchPath> CreateSearchPaths()
		{
			List<ISearchPath> searchPaths = new List<ISearchPath>(_searchPathConfigs.Count);
			foreach (var searchPathConfig in _searchPathConfigs)
			{
				if (searchPathConfig.Enabled)
				{
					string path = searchPathConfig.Path;
					if (false == string.IsNullOrWhiteSpace(path))
					{
						searchPaths.Add(new SearchPath { Value = path });
					}
				}
			}
			return searchPaths;
		}
	}
}